Cement and concrete railway-tie.



MONROE. CEMENT AND CONCRETE RAILWAY TIE.

l APPLICATION PILED DBO. Z7, 1.909

Patnted Apr.4, 1911.

l l/ ////////N o)Witnesses attouwajs UNITED sTATEs PATENT oEEicEt JAMES Gr.. MONROE, OF CLINTON, IOWA, ASSIGNOR F ONE-HALF TO THOMAS R.

l MURRAY, OF CLINTON, IOWA.

CEMENT AND CONCRETE RAILWAY-TIE.

Specication of Letters Patent.

lPatented Apr. 4, 1911.

To all lwhom it may concern:

Be it known that I, JAMES Gr.` MONROE, a citizen of the United States, residing at Clinton, in the county of Clinton and State of Iowa, have inventedv a new and useful Cement and Concrete Railway-Tie, of which the following is a specification.

This invention relates to improvements in railway ties and has for its object the provision of a tie made from concrete which may be readily formed along the line of the railway or may be made ata central plant and shipped to the point of use. I

The invention also seeks to provide a simple and easily applied fastening by which the track rails will be securely held in position upon the tie. j

These objects are attained in the use of the device illustrated in the accompanying drawing, and the invention consists in eertain features of the same as will be hereinafter first fully described and then particularly pointed out in the claims.

-per side or top of the casing being open, as

clearly shown.v The cement and otherv materials to form a tie are placed in this casing or shell and allowed to harden so that the shell will not only serve as a casing for the tie but will also perform the functions of a mold. The tie lnay, however, be formed in any preferred form of removable mold and the shell shown in the drawings dispensed with. `The use of the shell, however, will permit the rapid formation of the ties at the point of use, inasmuch as the shell may be properly positioned in the ground and the j tie then formed therein, and when hardened will` be in position to receive and support the track rails'. The concrete mixture 2 is .l p'oured in thelshell through the open top of the same, and a reinforcing bar 3 is disposed 'longitudinally within the mixture so as to belembedded thereinjand' impart the necessary tensile strength'thereto, as will be'understood. This reinforcing bar is constructed of twistedmetal, as clearly shown in Fig. 1, and its ends yare forked, as shown at 4, so as to pass on either side of the track fastenings and thoroughly reinforce the tie at the sides of the fastenings. At each end of the tie and between the branches of the fork 4t is embedded a retaining rod 5 on which is fitted a pair of wear or holding plates G which extend up to the top of the tie, as shown most clearly in Fig. 2. Rail engaging keepers 7 are also mounted 0n the retaining rod 5 and are provided with lips or projections 8 at their upper ends adapted to engage over the base of the' track rail 9, as clearly shown, the said keepers thereby serving to hold the track rail irmly upon the tie. Wedge-shaped locking keys 10 are inserted between the keepers 7 and the holding plates G `andserve to force the keepers into positive engagement with the track rails by being driven downward between` the keepers and the .holding plates, as shown, and as will be readily understood. In order to increase the holding power of the several parts the outer faces of the keepers 7 are provided with downwardly projecting teeth 1l which are adapted to engage the adjacent face of the key when the same is driven home so that withdrawal of the key cannot be easily effected.

It is thought that the advantages of the device will be readily understood from the foregoing description, taken in connection with the accompanying drawings. The tie, as stated, may be made at a factory and shipped tothe point 0f use or it may be formed immediately on the'linc of the track by burying the shell or casing 1 and then pouring the mixed concrete therein.. The

members G and 7 are placed upon the retaining rod 5 and the said retaining. rods and the `reinforcing bar 3 are placed in the proper position within the shell before the same has been filled .with the concrete .mixture. After the tie has hardened the track rails are placed in the proper position thereon with their bases passing under the lips or projections 8 of the keepers 7, and the locking' keys are then driven home between the said .keepers and the adjacent holding .plates so as to force the keepers into positive engagement with the track rail andthe track rail may, if so desired, be provided withnotehes in its edges to fit .around the keepers 7 and thereby prevent creeping of the rail.

Having thus described my invention, what I claim is: f

tie,a retaining rod embedded therein at the end of the same, keepers tted on the said rod and` projecting upward therefrom through' the concrete body to engage a track rail, holding plates also litted on the retaining rod adjacent to the'said keepers, and wedges driven between the said holding plates and keepers to force the keepers into engagement with a track rail.

In testimony that I claim the foregoing as my own, I have hereto affixed my signa ture in the presence of two witnesses. Y JAMES Gr. MONROE.

Vitnesses: l

T. 1W.. HALL, 1

CATHERINE CONLEY. 

